Psychology Career Distinctions Case Study - Psychology Assignment Help

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QUESTION 1
Childhood maltreatment is thought to be linked to adult narcissistic traits. In particular, it is thought that the more severe the childhood maltreatment, the more a person would suffer from the vulnerable form of narcissism. Individuals with this type of personality disorder display attention seeking behaviors, lack empathy, are resentful, have an inferiority complex, and view criticism as a personal attack. As a result, these individuals can be very resentful and vindictive towards others. A research clinician has a sample of n=20 patients who have suffered extreme childhood maltreatment and agree to be assessed on a well-known interval scale for vulnerable narcissism. For the general population, scores on the vulnerable narcissism scale are normally distributed with a IA = 25 and 6=4. The sample of patients score an average of M=29. 
Can the research clinician conclude that the sample of patients who have experienced childhood maltreatment score significantly higher in vulnerable narcissism that the general population? (test at alpha = .05 and show all of the steps of hypothesis testing) 
 

QUESTION 2
Theorists have suggested that there may be a link between childhood trauma and involvement in the criminal justice system. These theorists think that rehabilitation for youth involved in the criminal justice system would be more effective if it targeted individual traumas in addition to known criminal risk factors. A researcher that works at one of the institutions for youth decided to test this theory choosing n=30 youth who were incarcerated and administered a questionnaire assessing their history of traumatic events. The researcher knew that youth in the general population tend to score on average a 1.1, = 5 (the c is not known) on the interval scale measuring trauma. The researcher is unsure whether this group of offenders will score higher or lower and after administering the scale found the mean to be M= 7 and with a variance of s2 = 4. Conduct all of the steps of hypothesis testing using an alpha = .05. 

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